The following lays out the conceptual steps of the
cumulative tolerance reassessment process, guided by the preceding principles.
Thus, for example, stakeholder consultations and peer review could be built
in throughout the process described here.

A cumulative approach would consider initially
all of the OP tolerances together rather than first considering the tolerances
associated with each individual OP.

-- The first step would be to identify those food uses
which pose the greatest risk. Criteria for priority action would be applied
to target these high risk uses. Criteria could also target high worker and
ecological risk uses.

-- Crtieria could also be used to identify uses which
pose little or no risk concern.

A cumulative risk assessment would be conducted
(such assessment could initially be done for food only or include food,
residential and drinking water). This assessment would be shared with interested
parties.

Following comments on the cumulative risk
assessment, decision-making criteria would be applied to allow the Agency
to choose among competing OP chemical/use combinations to fill the cumulative
risk cup.

Dietary risks would be managed to acceptable
levels through appropriate regulatory action and transition
periods.